Dr. John E Sheehan MD

Recommended Articles

• Do Irregular Periods Cause Infertility: How to Get Pregnant

  Any woman can feel a great deal of anxiety when experiencing irregular periods. However, several women have been affected by it and have become a common problem of women these days. If a woman misses her period, it can be a sign of pregnancy, but having irregular periods may also indicate some...

• What is HIV: Get the Facts

  Over the course of our four million or so years of evolution, we humans have developed a highly-specialized immune system that is quite a warrior in combating infections. We are bombarded daily by bacterial and viral pathogens which have the potential to cause us serious illness, but, completely...

• How Should I Choose a Shampoo?

  It is normal to be confused about what to believe and what to buy when it comes to the different types of shampoos and conditioners that you see on market shelf. Some products claim to give you shiny hair, while others claim to help you achieve wavy and bouncy hair. There are hundreds of products...

• How Is Bronchitis Differentiated from Other Chest Infections?

  Bronchial tubes are the airways through which air travels and reaches the lungs. The inflammation of these bronchial tubes is called bronchitis. The inflammation is more often caused by a viral infection, smoke, dust, or other irritants.Bronchitis may be due to a chest infection, inflammation of...

• Do I Have a Vitamin D Deficiency?

  If you are a person who does not get adequate exposure to sunshine and also fails to have foods rich in it vitamin D, deficiency is the end result. This is very common in vegetarians, as this vitamin is mostly present in fish and eggs. Many products are now fortified with this vitamin to reduce the...

• What Is Nicotine?

  IntroductionNicotine is an alkaloid stimulant that comes from the nightshade family of plants, particularly from the leaves of tobacco. The type of nicotine found in tobacco plants is called Nicotiana tabacum. Nicotine can also be synthetically produced. Thousands of chemicals are contained in...